.textareaBox {
    position: relative;
}
.fakeTextarea {
    visibility: hidden;
}
.fakeTextarea, .TextareaAutoheight {
    font: inherit;
    line-height: 1.4;
    word-break: break-all;
    white-space: pre-wrap;
    letter-spacing: normal;
    text-align: left;
    word-spacing: normal;
    outline: none;
    box-shadow: none;
    border: none;
    outline: none;
    width: 100%;
    padding: 0px;
    margin-top: 0;
    margin-bottom: 0;
    resize: none;
    box-sizing: border-box;
    color: inherit;
    background: inherit;
    min-height: 1.4em;
}

.TextareaAutoheight {
    position: absolute;
    margin-top: 0;
    top: 0px;
    left: 0;
    height: 100%;
    width: 100%;
    // 伪元素颜色
    &::placeholder {
        font: inherit;
    }
}

:global(.device-ios) .TextareaAutoheight {
    top: -3px;
    left: -3px;
    height: calc(~'100% + 6px');
    width: calc(~'100% + 6px');
}
